Continuous Conduction Mode PFC Control IC

Equipped with a variety of functions for improving efficiency, driving higher efficiency and eco-friendliness for power supply systems of electric devices, and thus society as a whole. Driver ICs are also available for high-accuracy, high-efficiency LED lighting systems.

Product Status: Mass Production(*)


The R2A20131 is power factor correction control IC of continuous conduction mode.
The R2A20131 is built in Load Tracing Boost, Brownout, Over Voltage Protection, Over Current Protection, FeedBack loop Open detection and Power Good Function.
Load tracing boost function bring improvement of efficiency at light load with few external parts.
The feedback loop open detection, and over current protection are built in the R2A20131, and can constitute a power supply system of high reliability with few external parts.
Power Good Function monitors PFC output voltage and can adjust no-good level.


    • Absolute Maximum Ratings
      Supply voltage Vcc: 24 V
      Junction temperature Tj: –40 to +150°C
    • Electrical Characteristics
      Error amplifier reference voltage Vfb: 2.51 V ± 1.5%
      UVLO operation start voltage Vuvlh: 10.5 V ± 0.7 V
      UVLO operation shutdown voltage Vuvll: 9.3 V ± 0.5 V
      UVLO hysteresis voltage Hysuvl: 1.2 V ± 0.5 V
    • Functions
      Boost converter control with continuous conduction mode
      Load Tracing Boost (LTB) function: Vout is decreased at light load and AC 100 V system.
      Brownout function
      Over Voltage Protection
      Feedback loop Open detection
      Over Current Protection
      Power good information (Open drain output)
      Package: Pb-free SOP-16
      This Device uses Halogen-Free Molding Compound


Basic Information
Part Name
Production Status
Mass Production(*)
Vin (V) max.
Vo (V) max.
Pin Count
Package Type

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